Website Form and eReferral users can create and edit canned responses for submission and eReferral notifications. Login to the Ocean Portal, click on the "Menu" button in the top left corner and select "Admin". In the left side bar, click "Canned Responses". Once you've booked an appointment for a patient, you can set add canned comments that can be sent to the patient in advance of their appointment.
For more information about setting these up, please refer to "Creating Canned Responses for eReferral Bookings" (this article includes instructions for both website form and eReferral users).